CN113578217A - Intelligent temperature control equipment based on accurate temperature control of reation kettle material - Google Patents
Intelligent temperature control equipment based on accurate temperature control of reation kettle material Download PDFInfo
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- CN113578217A CN113578217A CN202110701122.3A CN202110701122A CN113578217A CN 113578217 A CN113578217 A CN 113578217A CN 202110701122 A CN202110701122 A CN 202110701122A CN 113578217 A CN113578217 A CN 113578217A
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- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
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- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00054—Controlling or regulating the heat exchange system
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- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
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Abstract
The invention discloses intelligent temperature control equipment based on precise temperature control of a material in a reaction kettle, which comprises a programmable controller and a control regulating valve; the programmable controller is used for controlling the regulating valve, specifically, acquiring real-time temperature and standard temperature in the reaction kettle, and acquiring regulating temperature through the difference value of the real-time temperature and the standard temperature; judging whether the regulated temperature belongs to the instant temperature or not; if the regulated temperature belongs to the instant temperature, temperature compensation is not carried out, and the regulating valve is controlled to regulate the temperature according to the regulated temperature; if the regulated temperature does not belong to the instantaneous temperature, then carry out temperature compensation, obtain the compensation temperature, carry out temperature regulation according to compensation temperature control governing valve this moment, carry out temperature regulation according to compensation temperature control governing valve, reached the urgent regulation to the temperature, because unknown the length of adjusting is long this moment, so the influence of temperature to heat-conducting medium in the pipeline in need of considering, and then more accurate accuse temperature reaches the reaction requirement, realizes temperature regulation's precision and intellectuality.
Description
Technical Field
The invention belongs to the field of intelligent control equipment, relates to an intelligent temperature control technology, and particularly relates to intelligent temperature control equipment based on accurate temperature control of materials in a reaction kettle.
Background
At present, the temperature requirements of pharmaceutical and chemical processes are higher and higher, and the high-precision process requires that the temperature of materials in a reaction kettle is within +/-2 ℃ in the temperature rising and falling process and the temperature fluctuation range in the temperature rising and falling process, so that a control algorithm needs to be designed to ensure that the temperature of a heat-conducting medium of a reaction kettle jacket can quickly follow the temperature of the materials in the reaction kettle, and the temperature overshoot of the materials in the reaction kettle is avoided.
Traditional pharmaceutical factory and chemical plant's reation kettle during accuse temperature, adopt the manually operation valve to control cold source and heat source through reation kettle jacket to this comes control reation kettle material temperature, but because temperature control system has hysteresis quality, the manually operation valve can not realize the real time control to reation kettle jacket temperature, can cause material temperature unstability in the reation kettle, surpasss the temperature range that the reation kettle material required easily.
Disclosure of Invention
The invention aims to provide intelligent temperature control equipment based on accurate temperature control of a reaction kettle material, which is used for solving the problems that the temperature of the material in the reaction kettle is unstable and easily exceeds the temperature range required by the material in the reaction kettle because the temperature of a jacket of the reaction kettle cannot be controlled in real time by manually operating a valve.
The purpose of the invention can be realized by the following technical scheme:
an intelligent temperature control device based on precise temperature control of a material in a reaction kettle comprises a programmable controller and a control regulating valve;
the programmable controller is used for controlling the regulating valve, specifically, acquiring real-time temperature and standard temperature in the reaction kettle, and acquiring regulating temperature through the difference value of the real-time temperature and the standard temperature;
judging whether the regulated temperature belongs to the instant temperature;
if the adjusting temperature belongs to the instant temperature, temperature compensation is not carried out, and the adjusting valve is controlled to carry out temperature adjustment according to the adjusting temperature;
and if the regulated temperature does not belong to the instant temperature, performing temperature compensation to obtain a compensated temperature, and controlling the regulating valve to regulate the temperature according to the compensated temperature.
Furthermore, the intelligent temperature control equipment also comprises a magnetic pump, a regulating valve, a heat exchanger, a temperature sensor, a pressure sensor and a liquid level sensor;
one end of the heat exchanger is connected with a cold source and a heat source, and the other end of the heat exchanger is connected with a liquid supply pipeline and a liquid return pipeline; regulating valves are also arranged between the heat exchanger and the cold source and between the heat source; the liquid supply pipeline and the liquid return pipeline are both communicated with the magnetic pump.
Further, the liquid supply pipeline is installed at the lower end of the reaction kettle, and the liquid return pipeline is installed at the upper end of the reaction kettle.
Further, before the step of judging whether the regulated temperature belongs to the instant temperature, the method further comprises the following steps:
collecting all operation data of the operation of a plurality of reaction kettles;
classifying the data, wherein the change of the substances in the reaction kettle and the time correspond to first-class data; the change of the material in the reaction kettle corresponds to the change of the temperature and is the second type data;
and inputting the operation data, the first class of data and the second class of data into a deep neural network for learning training to obtain a judgment model.
Further, specifically, the judging whether the regulated temperature belongs to the instantaneous temperature includes acquiring real-time operation data of the reaction kettle, inputting the real-time operation data as an input value into a judgment model, and if the real-time operation data includes first-class data and second-class data, the regulated temperature belongs to the instantaneous temperature; if the real-time operating data includes the first type of data but does not include the second type of data, the adjusted temperature does not belong to an instantaneous temperature.
Further, before performing temperature compensation, the method further comprises the following steps:
the environmental temperature of the reaction kettle, the pipeline lengths of the liquid supply pipeline and the liquid return pipeline and the heat dissipation capacity per unit length are obtained, the product of the pipeline length and the heat dissipation capacity per unit length is obtained to obtain the heat dissipation capacity of the pipeline, and the heat dissipation capacity of the pipeline is converted into the loss temperature through a conversion formula.
Further, the programmable controller can be topologically connected with one-to-many or many-to-many pairs of reaction kettles.
Further, the programmable controller also comprises a general communication protocol, wherein the communication protocol is a Modbus TCP/IP protocol, and the communication protocol connects the programmable controller to a DCS system of a factory.
Compared with the prior art, the invention has the beneficial effects that:
the intelligent temperature control equipment comprises a programmable controller and a control regulating valve; the programmable controller is used for controlling the regulating valve, specifically, acquiring real-time temperature and standard temperature in the reaction kettle, and acquiring regulating temperature through the difference value of the real-time temperature and the standard temperature; judging whether the regulated temperature belongs to the instant temperature or not; if the regulated temperature belongs to the instant temperature, temperature compensation is not carried out, and the regulating valve is controlled to regulate the temperature according to the regulated temperature; if the regulated temperature does not belong to the instantaneous temperature, then carry out temperature compensation, obtain the compensation temperature, carry out temperature regulation according to compensation temperature control governing valve this moment, carry out temperature regulation according to compensation temperature control governing valve, reached the urgent regulation to the temperature, because unknown the length of adjusting is long this moment, so the influence of temperature to heat-conducting medium in the pipeline in need of considering, and then more accurate accuse temperature reaches the reaction requirement, realizes temperature regulation's precision and intellectuality.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic block diagram of the present invention;
FIG. 2 is a schematic view of the present invention.
Detailed Description
The embodiments of the present invention will be described below with reference to the drawings.
The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
At present, the temperature requirements of pharmaceutical and chemical processes are higher and higher, and the high-precision process requires that the temperature of materials in a reaction kettle is within +/-2 ℃ in the temperature rising and falling process and the temperature fluctuation range in the temperature rising and falling process, so that a control algorithm needs to be designed to ensure that the temperature of a heat-conducting medium of a reaction kettle jacket can quickly follow the temperature of the materials in the reaction kettle, and the temperature overshoot of the materials in the reaction kettle is avoided.
When the temperature of the reaction kettle of the traditional pharmaceutical factory and chemical factory is controlled, the cold source and the heat source passing through the jacket of the reaction kettle are controlled by adopting the manual operation valve, so as to control the material temperature of the reaction kettle, but because the temperature control system has hysteresis, the manual operation valve can not realize the real-time control of the jacket temperature of the reaction kettle, the material temperature in the reaction kettle is unstable, and the temperature easily exceeds the temperature range required by the material of the reaction kettle;
in order to solve the technical problems, the application provides intelligent temperature control equipment, wherein the intelligent temperature control equipment comprises a programmable controller and a control regulating valve; the programmable controller is used for controlling the regulating valve, specifically, acquiring real-time temperature and standard temperature in the reaction kettle, and acquiring regulating temperature through the difference value of the real-time temperature and the standard temperature; judging whether the regulated temperature belongs to the instant temperature or not; if the regulated temperature belongs to the instant temperature, temperature compensation is not carried out, and the regulating valve is controlled to regulate the temperature according to the regulated temperature; and if the regulated temperature does not belong to the instant temperature, performing temperature compensation to obtain a compensated temperature, and controlling the regulating valve to regulate the temperature according to the compensated temperature.
The intelligent temperature control equipment is mainly applied to the fields of high-precision and intelligent temperature control of reaction kettles of pharmaceutical factories and chemical factories, aims to provide a high-precision intelligent temperature control solution for customers, achieves the aim of intelligent automation, provides a series of services from the solution of the temperature control solution to data acquisition, alarm recording, audit tracking, whole-factory control of a connectable DCS and the like, and meets the requirements of a production process on high-precision temperature control and intelligent control;
at present, few manufacturers of intelligent temperature control equipment aiming at 100L-6000L volume reaction kettles of pharmaceutical factories and chemical plants are provided, and few manufacturers can realize the mode of quickly following the temperature of materials in the reaction kettle by controlling the temperature of a jacket of the reaction kettle, so that the mode of quickly rising and falling the temperature of the materials in the reaction kettle and accurately controlling the temperature of the materials is achieved.
The application disclosed by the embodiment of the application can be applied to electronic equipment such as a personal computer, a smart phone (such as an Android mobile phone, an iOS mobile phone and the like), a tablet personal computer, a palm computer or wearable equipment, and can also be applied to multimedia playing application (such as a QQ music player) or multimedia editing application (such as Au) operated by the electronic equipment.
Based on the above description, an embodiment of the present invention provides an intelligent temperature control device based on precise temperature control of a material in a reaction kettle, as shown in fig. 1, where the intelligent temperature control device includes a programmable controller and a control regulating valve;
the programmable controller is used for controlling the regulating valve, specifically, acquiring real-time temperature and standard temperature in the reaction kettle, and acquiring regulating temperature through the difference value of the real-time temperature and the standard temperature;
judging whether the regulated temperature belongs to the instant temperature or not;
if the regulated temperature belongs to the instant temperature, temperature compensation is not carried out, and the regulating valve is controlled to regulate the temperature according to the regulated temperature;
and if the regulated temperature does not belong to the instant temperature, performing temperature compensation to obtain a compensated temperature, and controlling the regulating valve to regulate the temperature according to the compensated temperature.
The intelligent temperature control equipment also comprises a magnetic pump, a regulating valve, a heat exchanger, a temperature sensor, a pressure sensor and a liquid level sensor;
one end of the heat exchanger is connected with a cold source and a heat source, and the other end of the heat exchanger is connected with a liquid supply pipeline and a liquid return pipeline; regulating valves are also arranged between the heat exchanger and the cold source and between the heat source; the liquid supply pipeline and the liquid return pipeline are both communicated with the magnetic pump.
The liquid supply pipeline is arranged at the lower end of the reaction kettle, and the liquid return pipeline is arranged at the upper end of the reaction kettle.
Before judging whether the regulated temperature belongs to the instant temperature, the method also comprises the following steps:
collecting all operation data of the operation of a plurality of reaction kettles;
classifying the data, wherein the change of the substances in the reaction kettle and the time correspond to first-class data; the change of the material in the reaction kettle corresponds to the change of the temperature and is the second type data;
and inputting the operation data, the first class of data and the second class of data into a deep neural network for learning training to obtain a judgment model.
Judging whether the regulated temperature belongs to the instant temperature specifically, acquiring real-time operation data of the reaction kettle, inputting the real-time operation data as an input value into a judgment model, and if the real-time operation data comprises first-class data and second-class data, regulating the temperature to belong to the instant temperature; if the real-time operating data includes the first type of data but does not include the second type of data, then the adjusted temperature does not belong to the instantaneous temperature.
Before temperature compensation, the method also comprises the following steps:
the environmental temperature of the reaction kettle, the pipeline lengths of the liquid supply pipeline and the liquid return pipeline and the heat dissipation capacity per unit length are obtained, the product of the pipeline length and the heat dissipation capacity per unit length is obtained to obtain the heat dissipation capacity of the pipeline, and the heat dissipation capacity of the pipeline is converted into the loss temperature through a conversion formula.
The programmable controller can be topologically connected with one-to-many or many-to-many pairs of reaction kettles.
The programmable controller also comprises a universal communication protocol, wherein the communication protocol is a ModbusTCP/IP protocol, and the communication protocol connects the programmable controller to a DCS (distributed control system) of the factory.
The present disclosure is explained in detail below with reference to specific examples.
Example 1
In the embodiment, the intelligent temperature control equipment is installed in a factory building as an example;
the intelligent temperature control equipment comprises a magnetic pump, a regulating valve, a heat exchanger, a temperature sensor, a pressure sensor, a liquid level sensor and a programmable controller;
the intelligent temperature control equipment needs to be connected with a cold source and a heat source, wherein the cold source is chilled water at the temperature of minus 20 ℃ and the heat source is steam. Cold source and heat source pass through heat exchanger and heat-conducting medium heat transfer in the equipment, intelligence temperature control equipment passes through the liquid supply pipe and is connected with the reation kettle lower extreme, return liquid pipeline and reation kettle upper end connection, magnetic drive pump carries heat-conducting medium to reation kettle after with the heat transfer, heat-conducting medium circulation flow between reation kettle and temperature control equipment, the governing valve is used for adjusting the flow of cold source or heat source, thereby control heat-conducting medium's temperature, intelligence temperature control equipment can realize that equipment and reation kettle's one-to-many or many-to-many topological are connected, programmable controller contains general communication protocol, like modbusTCP/IP protocol, can be connected to the DCS system of mill with PLC, realize whole factory control.
In the concrete implementation, the intelligent temperature control equipment is arranged in a reaction kettle plant, and a liquid return pipeline and a liquid supply pipeline are also arranged in the reaction kettle plant;
at the moment, the environmental temperature of the reaction kettle, the pipeline lengths of the liquid supply pipeline and the liquid return pipeline and the temperature difference of unit length are obtained, the product of the pipeline length and the heat dissipation capacity of unit length is obtained to obtain the pipeline temperature difference, and the pipeline temperature difference is lost;
illustratively, the heat dissipation capacity of a unit length is selected by selecting a characteristic pipeline unit, specifically, the effective area and the pipeline working section of a reactor plant are obtained by measurement, and the detection range is obtained by the ratio of the pipeline working section to the effective area;
selecting a detection space with a length detection range on two sides of a pipeline, placing a plurality of temperature sensors in the detection space at equal intervals, acquiring the acquired data of the plurality of temperature sensors, and selecting two temperature sensors corresponding to two sets of acquired data with the largest difference after the difference between the two sets of data in the plurality of acquired data as calibration temperature sensors;
at the moment, a vertical line is made along the calibration temperature sensor until the vertical line is contacted with the pipeline, at the moment, two points are provided for contact points, the point close to the control regulating valve is marked as a starting point, and the other point is a cut-off point;
respectively measuring the temperature of the heat-conducting medium flowing out of the starting point and the temperature of the heat-conducting medium flowing into the stopping point, and acquiring the temperature difference between the two points, wherein the corresponding temperature difference is the loss temperature of the pipeline temperature difference;
collecting all operation data of a plurality of reaction kettles;
classifying the data, wherein the change of the substances in the reaction kettle and the time correspond to first-class data; the change of the material in the reaction kettle corresponds to the change of the temperature and is the second type data;
inputting the operation data, the first class of data and the second class of data into a deep neural network for learning training to obtain a judgment model, wherein the deep neural network is specifically a convolutional neural network;
acquiring real-time operation data of the reaction kettle, inputting the real-time operation data into a judgment model as an input value, and if the real-time operation data comprises first-class data and second-class data, adjusting the temperature to be the instant temperature; if the real-time operating data includes the first type of data but does not include the second type of data, then the adjusted temperature does not belong to the instantaneous temperature.
Illustratively, the above cases are divided into three kinds;
in the first situation, the real-time operation data of the reaction kettle comprises first-class data and second-class data, which indicates that the operation condition of the reaction kettle is met, and the temperature change at the moment is an intra-situation change and belongs to instantaneous temperature;
in the second case, the real-time operation data of the reaction kettle comprises the first kind of data but does not comprise the second kind of data, which indicates that the operation condition of the reaction kettle is not matched with the corresponding operation temperature, does not belong to the instant temperature, and needs to be subjected to temperature interference;
in the third case, the real-time operation data of the reaction kettle does not include the first kind of data, and includes the second kind of data, which indicates that the operation condition of the reaction kettle is not matched with the corresponding generated product, and at this time, the programmable controller sends the real-time operation data of the reaction kettle to a DCS system of the factory through a ModbusTCP/IP protocol, so as to complete feedback.
For example, when the first condition occurs, temperature compensation is not performed, and the regulating valve is controlled to perform temperature regulation according to the regulation temperature, because the temperature change belongs to transient change or change in a short time, the influence of the indoor temperature on the heat-conducting medium in the pipeline does not need to be considered;
when the second condition occurs, temperature compensation is needed to obtain compensation temperature, the regulating valve is controlled according to the compensation temperature to adjust the temperature, specifically, because the temperature change belongs to abnormal change, the material reaction in the reaction kettle can be abnormally carried out, because the temperature change belongs to abnormal change and does not belong to the change in the reaction process, the temperature adjustment needs to be accurately controlled, the temperature is urgently adjusted, and because the time length of adjustment is unknown, the influence of the internal temperature on a heat-conducting medium in a pipeline needs to be considered, and the more accurate temperature control meets the reaction requirement;
and acquiring the temperature in the reaction kettle and the standard reaction temperature to obtain an adjusted temperature, acquiring the real-time pipeline loss temperature, acquiring a compensation temperature through the sum of the adjusted temperature and the loss temperature, and controlling the adjusting valve to control the temperature of the heat exchange medium according to the compensation temperature.
The intelligent temperature control equipment further comprises a magnetic pump, a regulating valve, a heat exchanger, a temperature sensor, a pressure sensor and a liquid level sensor, wherein the magnetic pump, the regulating valve, the heat exchanger, the temperature sensor, the pressure sensor and the liquid level sensor are used for monitoring heat exchange media.
Example 2
In the embodiment, the intelligent temperature control equipment is installed outside a plant, and the intelligent temperature control equipment and the reaction kettle plant do not belong to the same installation area;
the intelligent temperature control equipment comprises a magnetic pump, a regulating valve, a heat exchanger, a temperature sensor, a pressure sensor, a liquid level sensor and a programmable controller;
the intelligent temperature control equipment needs to be connected with a cold source and a heat source, wherein the cold source is chilled water at the temperature of minus 20 ℃ and the heat source is steam. Cold source and heat source pass through heat exchanger and heat-conducting medium heat transfer in the equipment, intelligence temperature control equipment passes through the liquid supply pipe and is connected with the reation kettle lower extreme, return liquid pipeline and reation kettle upper end connection, magnetic drive pump carries heat-conducting medium to reation kettle after with the heat transfer, heat-conducting medium circulation flow between reation kettle and temperature control equipment, the governing valve is used for adjusting the flow of cold source or heat source, thereby control heat-conducting medium's temperature, intelligence temperature control equipment can realize that equipment and reation kettle's one-to-many or many-to-many topological are connected, programmable controller contains general communication protocol, like modbusTCP/IP protocol, can be connected to the DCS system of mill with PLC, realize whole factory control.
In the concrete implementation, the intelligent temperature control equipment is arranged in a reaction kettle plant, and a liquid return pipeline and a liquid supply pipeline are also arranged in the reaction kettle plant;
at the moment, the environmental temperature of the reaction kettle, the pipeline lengths of the liquid supply pipeline and the liquid return pipeline and the temperature difference of unit length are obtained, the product of the pipeline length and the heat dissipation capacity of unit length is obtained to obtain the pipeline temperature difference, and the pipeline temperature difference is lost;
illustratively, the heat dissipation capacity of a unit length is selected by selecting a characteristic pipeline unit, specifically, the effective area and the pipeline working section of a reactor plant are obtained by measurement, and the detection range is obtained by the ratio of the pipeline working section to the effective area;
at the moment, because part of the pipelines are positioned outside the reactor plant, the temperature is different from the temperature of the reactor plant;
at the moment, the length of the pipeline outside the plant and the total length of the pipeline are obtained, and the external installation rate of the pipeline is obtained according to the ratio of the length of the pipeline outside the plant of the reaction kettle to the total length of the pipeline;
if the external installation rate of the pipeline is less than or equal to 10%, the detection range of the pipeline outside the reactor plant is the same as the detection range in the reactor plant;
if the external installation rate of the pipeline is more than 10%, obtaining a detection range through the ratio of the length of the pipeline to the floor area of the pipeline, wherein the pipeline is positioned outside the reactor plant;
selecting a detection space with a length detection range on two sides of a pipeline, placing a plurality of temperature sensors in the detection space at equal intervals, acquiring the acquired data of the plurality of temperature sensors, and selecting two temperature sensors corresponding to two sets of acquired data with the largest difference after the difference between the two sets of data in the plurality of acquired data as calibration temperature sensors;
at the moment, a vertical line is made along the calibration temperature sensor until the vertical line is contacted with the pipeline, at the moment, two points are provided for contact points, the point close to the control regulating valve is marked as a starting point, and the other point is a cut-off point;
respectively measuring the temperature of the heat-conducting medium flowing out of the starting point and the temperature of the heat-conducting medium flowing into the stopping point, and acquiring the temperature difference between the two points, wherein the corresponding temperature difference is the loss temperature of the pipeline temperature difference;
collecting all operation data of a plurality of reaction kettles;
classifying the data, wherein the change of the substances in the reaction kettle and the time correspond to first-class data; the change of the material in the reaction kettle corresponds to the change of the temperature and is the second type data;
inputting the operation data, the first class of data and the second class of data into a deep neural network for learning training to obtain a judgment model, wherein the deep neural network is specifically a convolutional neural network;
acquiring real-time operation data of the reaction kettle, inputting the real-time operation data into a judgment model as an input value, and if the real-time operation data comprises first-class data and second-class data, adjusting the temperature to be the instant temperature; if the real-time operating data includes the first type of data but does not include the second type of data, then the adjusted temperature does not belong to the instantaneous temperature.
Illustratively, the above cases are divided into three kinds;
in the first situation, the real-time operation data of the reaction kettle comprises first-class data and second-class data, which indicates that the operation condition of the reaction kettle is met, and the temperature change at the moment is an intra-situation change and belongs to instantaneous temperature;
in the second case, the real-time operation data of the reaction kettle comprises the first kind of data but does not comprise the second kind of data, which indicates that the operation condition of the reaction kettle is not matched with the corresponding operation temperature, does not belong to the instant temperature, and needs to be subjected to temperature interference;
in the third case, the real-time operation data of the reaction kettle does not include the first kind of data, and includes the second kind of data, which indicates that the operation condition of the reaction kettle is not matched with the corresponding generated product, and at this time, the programmable controller sends the real-time operation data of the reaction kettle to a DCS system of the factory through a ModbusTCP/IP protocol, so as to complete feedback.
For example, when the first condition occurs, temperature compensation is not performed, and the regulating valve is controlled to perform temperature regulation according to the regulation temperature, because the temperature change belongs to transient change or change in a short time, the influence of the indoor temperature on the heat-conducting medium in the pipeline does not need to be considered;
when the second condition occurs, temperature compensation is needed to obtain compensation temperature, the regulating valve is controlled according to the compensation temperature to adjust the temperature, specifically, because the temperature change belongs to abnormal change, the material reaction in the reaction kettle can be abnormally carried out, because the temperature change belongs to abnormal change and does not belong to the change in the reaction process, the temperature adjustment needs to be accurately controlled, the temperature is urgently adjusted, and because the time length of adjustment is unknown, the influence of the internal temperature on a heat-conducting medium in a pipeline needs to be considered, and the more accurate temperature control meets the reaction requirement;
and acquiring the temperature in the reaction kettle and the standard reaction temperature to obtain an adjusted temperature, acquiring the real-time pipeline loss temperature, acquiring a compensation temperature through the sum of the adjusted temperature and the loss temperature, and controlling the adjusting valve to control the temperature of the heat exchange medium according to the compensation temperature.
The intelligent temperature control equipment further comprises a magnetic pump, a regulating valve, a heat exchanger, a temperature sensor, a pressure sensor and a liquid level sensor, wherein the magnetic pump, the regulating valve, the heat exchanger, the temperature sensor, the pressure sensor and the liquid level sensor are used for monitoring heat exchange media.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units is only one type of division of logical functions, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit may be stored in a computer readable memory if it is implemented in the form of a software functional unit and sold or used as a stand-alone product. Based on such understanding, the technical solution of the present application may be substantially implemented or a part of or all or part of the technical solution contributing to the prior art may be embodied in the form of a software product stored in a memory, and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the above-mentioned method of the embodiments of the present application. And the aforementioned memory comprises: a U-disk, a Read-only memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable memory, which may include: flash memory disks, Read-only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (8)
1. The intelligent temperature control equipment based on the precise temperature control of the materials in the reaction kettle is characterized by comprising a programmable controller and a control regulating valve;
the programmable controller is used for controlling the regulating valve, specifically, acquiring real-time temperature and standard temperature in the reaction kettle, and acquiring regulating temperature through the difference value of the real-time temperature and the standard temperature;
judging whether the regulated temperature belongs to the instant temperature;
if the adjusting temperature belongs to the instant temperature, temperature compensation is not carried out, and the adjusting valve is controlled to carry out temperature adjustment according to the adjusting temperature;
and if the regulated temperature does not belong to the instant temperature, performing temperature compensation to obtain a compensated temperature, and controlling the regulating valve to regulate the temperature according to the compensated temperature.
2. The intelligent temperature control device based on the precise temperature control of the reaction kettle material according to claim 1, further comprising a magnetic pump, a regulating valve, a heat exchanger, a temperature sensor, a pressure sensor and a liquid level sensor;
one end of the heat exchanger is connected with a cold source and a heat source, and the other end of the heat exchanger is connected with a liquid supply pipeline and a liquid return pipeline; regulating valves are also arranged between the heat exchanger and the cold source and between the heat source; the liquid supply pipeline and the liquid return pipeline are both communicated with the magnetic pump.
3. The intelligent temperature control device based on the accurate temperature control of the reaction kettle materials as claimed in claim 2, wherein the liquid supply pipeline is installed at the lower end of the reaction kettle, and the liquid return pipeline is installed at the upper end of the reaction kettle.
4. The intelligent temperature control device based on the precise temperature control of the reaction kettle material as claimed in claim 1, wherein before said judging whether the regulated temperature belongs to the instant temperature, it further comprises the following steps:
collecting all operation data of the operation of a plurality of reaction kettles;
classifying the data, wherein the change of the substances in the reaction kettle and the time correspond to first-class data; the change of the material in the reaction kettle corresponds to the change of the temperature and is the second type data;
and inputting the operation data, the first class of data and the second class of data into a deep neural network for learning training to obtain a judgment model.
5. The intelligent temperature control device based on the precise temperature control of the reaction kettle material as claimed in claim 1, wherein the judging whether the regulated temperature belongs to the instant temperature specifically comprises obtaining real-time operation data of the reaction kettle, inputting the real-time operation data as an input value into a judgment model, and if the real-time operation data comprises a first type of data and a second type of data, the regulated temperature belongs to the instant temperature; if the real-time operating data includes the first type of data but does not include the second type of data, the adjusted temperature does not belong to an instantaneous temperature.
6. The intelligent temperature control device based on the precise temperature control of the reaction kettle material according to claim 1, further comprising the following steps before the temperature compensation:
the environmental temperature of the reaction kettle, the pipeline lengths of the liquid supply pipeline and the liquid return pipeline and the heat dissipation capacity per unit length are obtained, the product of the pipeline length and the heat dissipation capacity per unit length is obtained to obtain the heat dissipation capacity of the pipeline, and the heat dissipation capacity of the pipeline is converted into the loss temperature through a conversion formula.
7. The intelligent temperature control device based on the precise temperature control of the reaction kettle materials as claimed in claim 1, wherein the programmable controller can be topologically connected with one-to-many or many-to-many pairs of reaction kettles.
8. The intelligent temperature control device based on the accurate temperature control of the reaction kettle materials as claimed in claim 1, further comprising a general communication protocol in the programmable controller, wherein the communication protocol is a Modbus TCP/IP protocol, and the communication protocol connects the programmable controller to a DCS system of a factory.
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